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Finding the Fourth Proportional to 220,954.48, 331,385.16 and 71,208.16

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Solution

The fourth proportional to 220,954.48, 331,385.16 and 71,208.16 is: 106,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,954.48 : 331,385.16 = 71,208.16 : x
  2. Step 2: Convert to fraction form
    220,954.48/331,385.16 = 71,208.16/x
  3. Step 3: Cross multiply
    220,954.48x = 331,385.16 × 71,208.16
  4. Step 4: Simplify right side
    220,954.48x = 23,597,327,494.91
  5. Step 5: Solve for x
    x = 23,597,327,494.91/220,954.48
  6. Step 6: Final answer
    x = 106,797.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.